Abstract
OBJECTIVE: To analyze the association of changes in social security (SS) continuity and mortality, using the Mexican Health and Aging Study (MHAS) in people aged 60 years and more. MATERIALS AND METHODS: Retrospective cohort. We analyzed the SS continuity condition -classified as stable, unstable with SS, unstable without SS, and without SS- and its relation with mortality; a probit regression model was utilized to obtain marginal effects, taking into consideration covariates related to mortality. RESULTS: Unstable continuity with and without SS and multimorbidity (two or more diseases) increased the probability of dying by 52.9% (p = 0.000, 95%CI: 0.508,0.551), 50.3% (p = 0.000, 95%CI: 0.474,0.531) and 13.3% (p = 0.000, 95%CI: 0.108,0.159), respectively. Meanwhile, being woman, at least one year of formal education, and marriage reduced it in 8.8% (p = 0.000, 95%CI: -0.106,-0.071), 7% (p = 0.000, 95%CI: -0.091,-0.050) and 7.8% (p = 0.000, 95%CI: -0.096,-0.061), respectively. CONCLUSION: Belonging to SS was associated with higher mortality, compared to other social health determinants, like education.